Oil-well apparatus



March M 1924 F. B. JACKSON OIL WELL APPARATUS.

2 Sheets-Sheet 1 Filed June 50 V1922 Patented Mer. ll, 1924i.

stare FRANCIS B. JACKSON, 0F TU LSA, OKLAHGHLA.

ern-WELL arranerus.

Application led June 30, 1922. Serial No. 571,856.

To all whom it may concer/n:

Be -it known that I, FRANCIS B. JACKSON, a citizen of the United States of America, residing at Tulsa, in the county vof 'lulsa and State of Oklahoma, have invented certain new and useful Improvements in Oil- Well Apparatus, of which the following is a speciication. v

This invention relates to certain new and useful improvements in oil well apparatus and especially to improvements on my prior Patent No. 1,151,882 for improvements in apparatus for owing oil from oil wells, granted August 31, 1915. y

It is found, in the use of flowing devices for oil wells, that when 'the well is first drilled and is young or new, suiiicient gas passes into the well with the oil to carry the oil out of the well over in storage tanks. However, it frequently happens that the gas begins to lose its pressure and is neither of `sulic'ient volume nor pressure to carry the oil out of the well through the casing which is ordinarily placed in the well to prevent the caving ofthe sides and to keep out the water and mud. Under these conditions it frequently happens that there is sufficient gas left and under sucient pressure to enable the device of my prior patent to be utilized. At other times the pressure drops still further so that the flowing device above referred to fails to function and in these circumstances it has heretofore been necessary to pull the long string of tubing, remove the flowing device and replace the same with a pumping device. This is objectionable on account of its openings and moreover, the decrease in volume and pressure of the gas is sometimes only temporary and makes it essential to replace the Howing device or to do unnecessary pumping.

The principal object of the present invention is to provide an improved arrangement of this character wherein my owin device will be so constructed and arranged that it may be quickly changed into a pumpin device or changed back therefrom into a owing device.

Carrying out this object, one of the irn-l portant pointsl of the present invention is the provision of means for introducing a certain valve device which will cut ed the owing of the oil by gas and, in connection with a pump piston or plunger, will convert the owing device to a pumping device.

rWith the above and other objects in view,

the invention consists in general of certain novel details of construction and combinations of (parts hereinafter fully described, illustrate in the accompanying drawings, and specifically claimed.

In the accompanying drawings, like characters of reference indicate like parts in the several views, and

Figurel is a vertical section partly in elevation showing the arrangement of one form of the invention as used for a flowing device.

Figure 2 is a similar view showing the arrangement as used for pumping.

Figure 3 is an enlarged detailed section on the line 3-3 of Figure 1.

Figure 4 is an enlarged detailed section of a certain nipple and valve seat used in connection herewith;

Figure 5 is a section on the line 5 5 of Fi ure 4L.

igure 6 is a section showing a modified form of nipple in its relation tothe tubing, the view also showing one form of standing valve.

Figure 7 is a view similar to Figure 6 lbut showing a second form of standing valve.

Just as in my prior application, the device is illustrated as being positioned within the main casing 10 of the well and like the prior device, this maincasing may be omitted under favorable circumstances. The device is constructed of a cylindrical or tubing casing member 11 of proper length and of slightly less diameter than that of the well casing 10. This member has a collar 12 threaded on the outside of its lower end and provided with a sealing ring or packing 13 of flexible material to prevent the dow of oil and gas between the casino 10 and 11. 'or between the casing 11, and the wall of the well., A tubular cap 1A isthreaded into theupper end of the casing 11 and has a central loinlgitudinall bore. 'lo the upper end of this cap is screwed an outlet pipe 15 which extends straight upward to the top of the well. 'Fo the lower end of this cap is screwed a length of tubing 16 which is connected by a nipple 17 with a pump barrel 18. lit is referred that this diameter t an the tubing 15 and 16 so that a pump plunger may be put down said tubing and will till the working barrel. @n the lower end ot the barrel is a nipple 19 ump barrel shall be or smallerl lll@ having a central longitudinal bore 20 provided at its upper end with a valve seat 21. This nipple also has lateral passages 22 extending through its walls from the bore 2O and these passages are for the purposes of admitting collected gas in the casing 11 to the tubing extending upward from the nipple. This nipple may either be of the usual female form as shown in Figure 4 or 0f the male form as shown in Figure 7 and the central bore is arranged to receive a standing valve which, in Figures 2 and 6 is of a simple plunger type as shown at 24, the body being cylindrical so that when the valve is seated it will close off the openings 22 while it may lift as shown in Figure 6, to permit flow of liquid. In the form shown in Figure 7, the valve consists of a hollow cylindrical member or valve cage 25 having a flap, or other similar valve 26 at the upper end of its bore 27. The member 25 is of sufficient length and of proper size to fit within the bore 2() of the nipple and close ofl" the passages 22.

As previously noted, Figure 2 shows the device arranged for the purposes of pumping the well and in this connection it will be seen that a pump pistonl 28 is positioned above the valve 4, being worked up and down by means of suitable mechanism, not shown, connected tothe sucker rod 29. It will also be noted that the collar 12 is provided with' a transverse perforated diaphragm 30 and that from the lower end of the nipple 19 extends a tubing 31 which reaches beneath the normal oil lever of the well. In operation, whenever it is found necessary to change from the flowing device shown in Figure 1 to the pumping device shown in Figure 2, the standing valve is simply dropped .down the tubing or may be lowered down by a cord or wire until it setsin the nipple 19.l The pump plunger 28 is then introduced and the operation becomes simply that of pumping. The change back from the pumping device is readily effected by the removal of the. pump plunger and the fishing out of the standing valve. It will be noted that under these circumstances the nipple 19 constitutes ya valve seat.

There has thus been provided a simple and eicient device of the kind described and for the purposes specified.

Having thus described the invention what is claimed as new is 1. A device of the kind described, comprising a casing section adapted for closely fitting within a well, tubing extending through said section and having a gas tight connection with, said section, said tubing including a portion constituting a pump barrel and having a valve seat immediately below the ump barrel section and having lateral per orations and a standing valve adapted to seat in said valve casing and close said openings.

2. A device of the kind described comgrising a casing section adapted for closely tting within a well, tubing extendingl through said section and having a gas tight connection with said section, said tubing including a portion constituting a pump barrel and having a section below said pump barrel connectedv to the barrel by a nipple having lateral perforations and a seat for a standing valve at its upper end, and a standing valve adapted to be dropped down said tubing and seat in said nipple.

3. A device of the kind described comprising a casing section iitting closely with- 1n a well, a tubular cap on the upper end of said casing, tubing screwed into said cap and extending downward into said casing, an outlet pipe extendingeup from said cap, a pump arrel secured to the lower end of the tubing in alinement therewith, a nipple sleeve, or collar, or coupling at the lower end of the pump barrel having lateral outlet openingsand a seat for a standing valve at its upper end, and a standing valve adapted to be dropped down'the tubing to seat in the nipple,A sleeve collar or coupllng, and close off said' lateral openings. f'

4. A flow device having a gas and liquid receiving tube open at its lower end and provided with lateral outlet openings and a valve seat immediately above said openings, and a standing valve adapted to be dropped into the tube to engage `the valve seat and close said openings with the lower end of the receiving tube remaining open.

In testimony whereof I aiix my s1 ature.

FRANCIS B. J ACKgnON. 

